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MATHS M.C.Q. [1 Marks Each]

Mensuration · Gujarat Board (GSEB) STD 8 (GSEB - English Medium). 14 questions.

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M.C.Q. [1 Marks Each]

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14 questions · timed · auto-graded

MCQ 11 Mark
A cube of side 5 cm is palnted on all its faces. If it is sliced into cubes of side 1 cm, then how many cubes of side 1 cm will have exactly one of their faces painted?
  • A
    27
  • B
    42
  • ✓
    54
  • D
    142
Answer
Correct option: C.
54
C
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MCQ 21 Mark
The heights of two right circular cylinders are the same. Their volumes are $16 \pi  m^3$ and $81 \pi m^3$. The ratio of their base radii is
  • A
    $16: 81$
  • ✓
    $4: 9$
  • C
    $2: 3$
  • D
    $9: 4$
Answer
Correct option: B.
$4: 9$
B
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MCQ 31 Mark
The surface area of the six faces of a rectangular solid are $16,16,32,32,72$ and $72 cm^2$. The volume of the solid (in $cm ^3$ ) is
  • ✓
    192
  • B
    480
  • C
    384
  • D
    2592
Answer
Correct option: A.
192
A
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MCQ 41 Mark
The dimensions of a godown are 40 m, 25 m and 10 m . If it is filled with cuboidal boxes each of dimensions 2 m × 1.25 m × 1 m, then the number of boxes will be
  • A
    1800
  • B
    2000
  • ✓
    4000
  • D
    8000
Answer
Correct option: C.
4000
C
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MCQ 51 Mark
If the height of a cylinder becomes $\frac{1}{4}$ of the original height and the radius is doubled, then which of the following will be true?
  • A
    Volume of the cylinder will be doubled
  • ✓
    Volume of the cylinder will remain unchanged
  • C
    Volume of the cylinder will be halved
  • D
    Volume of the cylinder will be $\frac{1}{4}$ of the original volume
Answer
Correct option: B.
Volume of the cylinder will remain unchanged
B
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MCQ 61 Mark
The height of a cylinder whose radius is 7 cm and total surface area is $968 cm^2$ is
  • ✓
    15 cm
  • B
    17 cm
  • C
    19 cm
  • D
    21 cm
Answer
Correct option: A.
15 cm
A
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MCQ 81 Mark
8 persons can stay in a cubical room. Each person requires 27 $m ^3$ of air. The side of the cube is
  • ✓
    6 m
  • B
    4 m
  • C
    3 m
  • D
    2 m
Answer
Correct option: A.
6 m
A
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MCQ 91 Mark
A cylindrical box has ____________ curved surface and ____________ circular faces which are identical.
  • A
    one, one
  • ✓
    one, two
  • C
    two, one
  • D
    two, two
Answer
Correct option: B.
one, two
B
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MCQ 101 Mark
The ratio of radil of two cylinders is $1: 2$ and heights are in the ratio $2: 3$. The ratio of their volumes is
  • ✓
    $1: 6$
  • B
    $2: 9$
  • C
    $1: 3$
  • D
    $1: 9$
Answer
Correct option: A.
$1: 6$
A
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MCQ 111 Mark
Three cubes of metal whose edges are 6 cm, 8 cm and 10 cm respectively are melted to form a single cube. The edge of the new cube is
  • A
    6 cm
  • ✓
    12 cm
  • C
    8 cm
  • D
    18 cm
Answer
Correct option: B.
12 cm
B
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MCQ 121 Mark
A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the surface areas of the original cube and cut-out cubes?
  • A
    $1: 2$
  • B
    $1: 3$
  • ✓
    $1: 4$
  • D
    $1: 6$
Answer
Correct option: C.
$1: 4$
C
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MCQ 131 Mark
Volume of a cube is $216 cm^3$. Its surface area is
  • A
    $108 cm^2$
  • ✓
    $216 cm^2$
  • C
    $512 cm^2$
  • D
    $128 cm^2$
Answer
Correct option: B.
$216 cm^2$
B
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MCQ 141 Mark
The figure $A B C D$ is a quadrilateral, In which $A B-C D$ and $B C=A D$ Its area is
Image
  • A
    $72 cm^2$
  • ✓
    $36 cm^2$
  • C
    $24 cm^2$
  • D
    $18 cm^2$
Answer
Correct option: B.
$36 cm^2$
B
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M.C.Q. [1 Marks Each] - MATHS STD 8 Questions - Vidyadip